81671380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{583367}}^1$

素因数の和:583383

約数の個数: 24

約数和(自身を含む): 196011648

約数和(自身を除く): 114340268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 583367, 1166734, 2333468, 2916835, 4083569, 5833670, 8167138, 11667340, 16334276, 20417845, 40835690, 81671380]

約数ペア:

[(1, 81671380), (2, 40835690), (4, 20417845), (5, 16334276), (7, 11667340), (10, 8167138), (14, 5833670), (20, 4083569), (28, 2916835), (35, 2333468), (70, 1166734), (140, 583367)]